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How to Manage Pests
UC Pest Management Guidelines
Almond
Peach Silver Mite
Scientific name: Aculus cornutus
(Reviewed 1/05,
updated 1/05)
In this Guideline:
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Peach silver mite is white or cream colored and extremely small. The body is
teardrop shaped with four short legs at the larger (anterior) end. Because it
is much smaller than other mites on almonds, a high power hand lens (15X or
higher) may be needed to see it clearly.
Peach silver mite is not usually damaging in almonds, although can cause
symptoms if population build up on trees under 6 years old. Feeding by peach
silver mite causes tiny chorotic spots that give the leaf a silvery appearance,
especially along the midvein of the upper leaf surface. Symptoms resemble
thrips or leafhopper damage. Brown, sunken
spots sometimes develop along leaf
margins following silver mite feeding early in the season.
For the most part, peach silver mite is usually considered beneficial to have
in the orchard because it serves as a food source for mite predators. Unless
peach silver mite numbers are high enough that defoliation is occurring, no
treatment is necessary.
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Amount/Acre** |
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(conc.) |
(dilute) |
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A. |
WETABLE SULFUR# |
Label rates |
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UC IPM Pest Management Guidelines: Almond
UC ANR Publication 3431
Insects and Mites
F. G. Zalom, Entomology, UC Davis
C. Pickel, UC IPM Program, UC Cooperative Extension, Sutter/Yuba counties
W. J. Bentley, UC IPM Program, Kearney Agricultural Center, Parlier
R. L. Coviello, UC Cooperative Extension, Fresno Co
R. A. Van Steenwyk, Insect Biology, UC Berkeley
M. W. Freeman, UC Cooperative Extension, Fresno Co.
Acknowledgment for contributions to the insects and mites section:
R. E. Rice, Kearney Agricultural Center, Parlier
L. C. Hendricks, UC Cooperative Extension, Merced Co.
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